Trisomy 18

Edwards syndrome

Trisomy 18 is a genetic disorder in which a person has a third copy of material from chromosome 18, instead of the usual 2 copies. Most cases are not passed down through families. Instead, the problems that lead to this condition occur in either the sperm or the egg that forms the fetus.

Syndactyly

Fingers or toes (digits) may be fused together (syndactyly) or the webbing between them (inter-digital webbing) may extend far up the digits. Syndactyly is seen commonly between the second and third toes, and may sometimes be associated with a syndrome.

Causes

Symptoms

Exams and Tests

Treatment

Support Groups

Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional

Prevention